Re: BUG: soft lockup - CPU#0 stuck for 61s!

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Hi,

this is the one, i am getting in the console,

BUG: soft lockup - CPU#0 stuck for 61s! [linphone-3:764]
Modules linked in:

Pid: 764, comm:           linphone-3
CPU: 0    Not tainted  (2.6.28-rc9 #14)
PC is at handle_IRQ_event+0x28/0x74
LR is at handle_level_irq+0x94/0xec
pc : [<c008cc30>]    lr : [<c008e18c>]    psr: 48000113
sp : c7eede90  ip : c7eedeb0  fp : c7eedeac
r10: 0000001d  r9 : c0638ba8  r8 : 00000000
r7 : 0000005c  r6 : 00000000  r5 : 0000005c  r4 : c7a1b360
r3 : 00000000  r2 : 0000006e  r1 : c7a1b360  r0 : 0000005c
Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: 87f48018  DAC: 00000015
[<c003b370>] (show_regs+0x0/0x50) from [<c008c738>] (softlockup_tick+0x108/0x148)
 r5:00000104 r4:000000c7
[<c008c630>] (softlockup_tick+0x0/0x148) from [<c006f25c>] (run_local_timers+0x1c/0x20)
 r8:c0637d08 r7:00000107 r6:297648b1 r5:c7976cc0 r4:00000000
[<c006f240>] (run_local_timers+0x0/0x20) from [<c006f2dc>] (update_process_times+0x30/0x60)
[<c006f2ac>] (update_process_times+0x0/0x60) from [<c0081f9c>] (tick_sched_timer+0x90/0xc4)
 r5:c7eede48 r4:c06796d0
[<c0081f0c>] (tick_sched_timer+0x0/0xc4) from [<c007c2dc>] (__run_hrtimer+0x30/0x70)
 r7:7fffffff r6:ffffffff r5:c0637d08 r4:c06796d0
[<c007c2ac>] (__run_hrtimer+0x0/0x70) from [<c007cf08>] (hrtimer_interrupt+0x174/0x1e8)
 r5:00000107 r4:c06796d0
[<c007cd94>] (hrtimer_interrupt+0x0/0x1e8) from [<c004412c>] (omap2_gp_timer_interrupt+0x28/0x34)
[<c0044104>] (omap2_gp_timer_interrupt+0x0/0x34) from [<c008cc44>] (handle_IRQ_event+0x3c/0x74)
[<c008cc08>] (handle_IRQ_event+0x0/0x74) from [<c008e18c>] (handle_level_irq+0x94/0xec)
 r7:0000005c r6:00000000 r5:0000005f r4:c0639b20
[<c008e0f8>] (handle_level_irq+0x0/0xec) from [<c0039068>] (__exception_text_start+0x68/0x88)
 r5:c7eedee0 r4:0000005f
[<c0039000>] (__exception_text_start+0x0/0x88) from [<c0039a30>] (__irq_svc+0x30/0x80)
Exception stack(0xc7eede48 to 0xc7eede90)
de40:                   0000005c c7a1b360 0000006e 00000000 c7a1b360 0000005c
de60: 00000000 0000005c 00000000 c0638ba8 0000001d c7eedeac c7eedeb0 c7eede90
de80: c008e18c c008cc30 48000113 ffffffff
 r5:d8200000 r4:ffffffff


On Sat, Jun 26, 2010 at 4:30 PM, Michael Blizek <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hi!

On 12:13 Sat 26 Jun     , Harishkumar V wrote:
> Hi,
>
> I am facing "BUG: soft lockup - CPU#0 stuck for 61s!" problem. when i
> browsed through google, it appears to be general problem, but there is no
> workaround/solution exists. Any pointers how to trace this or fix this would
> be helpful.

This is a generic message which is printed, e.g. if there is an endless loop
in a bad place. There should be a stack trace attached, which often allows a
quick fix by the maintainers. If there is, please post it here. Otherwise you
might have configured your kernel that way, e.g. by compiling without frame
pointers on 32 bit x86.

       -Michi
--
programing a layer 3+4 network protocol for mesh networks
see http://michaelblizek.twilightparadox.com




--
Thanks and Regards,
Harish Kumar. V

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